MG528T/0.5M 28T Pinion for 48-Pitch Gears (Module 0.5mm, 5mm Bore) by GPM  [MG528T/0.5M]

Durability Notes - 45 Steel Pinion

The MG528T/0.5M is a 28-tooth pinion machined for 48-pitch systems with a 0.5mm module and a 5mm motor bore. It is suitable for RC electric models that require 48-pitch gearing.

Choose this pinion when replacing worn gears or when you want a 28T ratio in an existing 48-pitch train. The 45-steel material improves wear resistance at the mesh interface; still, precise alignment and mesh setting are essential to avoid accelerated wear on paired gears.

Installation guidance: make sure the motor shaft bore equals 5mm, position the pinion axle-wise to achieve correct mesh, secure the fastener and confirm there is no excessive endplay. After first runs check tooth contact and fastener security and tweak mesh if necessary.

Tuning impact: fitting this 28T pinion modifies the driven ratio in known increments, allowing you to tune acceleration versus top speed while staying within the constraints of your motor and ESC on 48-pitch setups.